Substation and MCC lab · Level 8 of 8
Find a fault in the MCC
Level 8 of 8 in the Substation and MCC lab: a free substation and MCC exercise at Advanced level. A motor keeps tripping. Take readings, find the cause, isolate safely, repair and prove it runs.
Free · no download. Your work is saved on this device. Updated 18 Oct 2026.
The brief
- Client
- Dunmore Mills
- Site
- Mill 3, MCC-3
- Work order
- WO-MCC-108
- Task code
- MCC-08
- Difficulty
- Advanced
- Type of work
- Fault-finding
A motor keeps tripping. Take readings, find the cause, isolate safely, repair and prove it runs.
Skills you practise
- Fault finding
- Taking readings
- Safe isolation before repair
- Proving a repair
What the test checks
The acceptance test marks the skills this level practises.
- Fault finding
- Taking readings
- Safe isolation before repair
- Proving a repair
In this lab
- Safe isolation: lock, tag, prove, test, earth
- Cables, breakers, relays and fault levels
- A 3D switchroom and transformer bay
Levels in the Substation and MCC lab
Part of the Substation and MCC lab
Walk a small substation, isolate a motor bucket safely, grade a relay and fault-find a motor control centre.
About the Substation and MCC lab
Feeds these internships: Control Panel Design and Wiring, Commissioning and Maintenance, Electrical Design.